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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 19 — Oct. 1, 2013
  • pp: 3834–3837

Measuring optically thick molecular samples using chirped laser dispersion spectroscopy

Michal Nikodem and Gerard Wysocki  »View Author Affiliations


Optics Letters, Vol. 38, Issue 19, pp. 3834-3837 (2013)
http://dx.doi.org/10.1364/OL.38.003834


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Abstract

In this Letter, a dispersion-based gas sensing method applied to detection of optically thick samples is presented. We show that chirped laser dispersion spectroscopy (CLaDS) technique provides perfectly linear signal response over a wide range of target analyte concentrations. Using the most convenient chirp-modulated CLaDS detection scheme, it enables spectroscopic measurements in a line-locked mode from the minimum detection limit up to >99% peak molecular absorption.

© 2013 Optical Society of America

OCIS Codes
(260.2030) Physical optics : Dispersion
(300.6360) Spectroscopy : Spectroscopy, laser
(300.6390) Spectroscopy : Spectroscopy, molecular

ToC Category:
Spectroscopy

History
Original Manuscript: July 22, 2013
Revised Manuscript: August 27, 2013
Manuscript Accepted: August 28, 2013
Published: September 23, 2013

Citation
Michal Nikodem and Gerard Wysocki, "Measuring optically thick molecular samples using chirped laser dispersion spectroscopy," Opt. Lett. 38, 3834-3837 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-19-3834


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References

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